WO2006028990A3 - Appareil de mesure d'ecoulement doppler - Google Patents

Appareil de mesure d'ecoulement doppler Download PDF

Info

Publication number
WO2006028990A3
WO2006028990A3 PCT/US2005/031363 US2005031363W WO2006028990A3 WO 2006028990 A3 WO2006028990 A3 WO 2006028990A3 US 2005031363 W US2005031363 W US 2005031363W WO 2006028990 A3 WO2006028990 A3 WO 2006028990A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
measurement apparatus
spectrum
flow measurement
doppler flow
Prior art date
Application number
PCT/US2005/031363
Other languages
English (en)
Other versions
WO2006028990A2 (fr
Inventor
George Eilers
Wes Webber
Edward Spence
Original Assignee
Nephros Inc
George Eilers
Wes Webber
Edward Spence
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nephros Inc, George Eilers, Wes Webber, Edward Spence filed Critical Nephros Inc
Priority to CA002577422A priority Critical patent/CA2577422A1/fr
Priority to EP05794140A priority patent/EP1791470A4/fr
Priority to JP2007530408A priority patent/JP2008512653A/ja
Priority to US11/574,605 priority patent/US20070293759A1/en
Publication of WO2006028990A2 publication Critical patent/WO2006028990A2/fr
Publication of WO2006028990A3 publication Critical patent/WO2006028990A3/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3663—Flow rate transducers; Flow integrators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/06—Measuring blood flow
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
    • G01F1/663—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters by measuring Doppler frequency shift

Abstract

La présente invention permet de mesurer un écoulement par ultrasons Doppler et, en particulier, par l'analyse du spectre du signal ultrasonore réfléchi. On mélange électroniquement le signal réfléchi au signal transmis dans un détecteur de produit, un démodulateur ou un composant similaire afin d'obtenir un signal décalé en fréquence. Dans un autre mode de réalisation, le procédé consiste à analyser le spectre des rayons ultrasonores réfléchis en procédant aux étapes suivantes: (a) on détermine une fréquence maximale du signal de sortie du détecteur qui est représentative d'une vitesse de particule maximale; et (b) on calcule un écoulement total de particules sur la base de la fréquence de particule maximale.
PCT/US2005/031363 2004-09-03 2005-09-02 Appareil de mesure d'ecoulement doppler WO2006028990A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA002577422A CA2577422A1 (fr) 2004-09-03 2005-09-02 Appareil de mesure d'ecoulement doppler
EP05794140A EP1791470A4 (fr) 2004-09-03 2005-09-02 Appareil de mesure d'ecoulement doppler
JP2007530408A JP2008512653A (ja) 2004-09-03 2005-09-02 ドップラー方式流速測定装置
US11/574,605 US20070293759A1 (en) 2004-09-03 2005-09-02 Doppler Flow Measurement Apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US60711204P 2004-09-03 2004-09-03
US60/607,112 2004-09-03

Publications (2)

Publication Number Publication Date
WO2006028990A2 WO2006028990A2 (fr) 2006-03-16
WO2006028990A3 true WO2006028990A3 (fr) 2006-06-29

Family

ID=36036880

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/031363 WO2006028990A2 (fr) 2004-09-03 2005-09-02 Appareil de mesure d'ecoulement doppler

Country Status (5)

Country Link
US (1) US20070293759A1 (fr)
EP (1) EP1791470A4 (fr)
JP (1) JP2008512653A (fr)
CA (1) CA2577422A1 (fr)
WO (1) WO2006028990A2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9354094B2 (en) * 2010-09-03 2016-05-31 Los Alamos National Security, Llc Apparatus and method for noninvasive particle detection using doppler spectroscopy
BR112013004991A2 (pt) * 2010-09-03 2016-05-31 Los Alamos Nat Security Llc método para determinar não invasivamente a composição de um fluido de multifases
CN106290977B (zh) * 2015-08-05 2020-01-10 水利部交通运输部国家能源局南京水利科学研究院 用多普勒超声波流速仪得到水流速信号的处理方法
US11020085B2 (en) * 2015-08-27 2021-06-01 Koninklijke Philips N.V. Spectral doppler processing with adaptive sample window size
JP6901089B2 (ja) * 2017-10-30 2021-07-14 国立大学法人九州大学 計測装置
CN108267637A (zh) * 2017-12-29 2018-07-10 国网天津市电力公司电力科学研究院 一种基于混合频谱特性的洗衣机非侵入式运行检测方法
CN109029602B (zh) * 2018-08-28 2020-01-21 泰华智慧产业集团股份有限公司 基于超声波的流量测量方法及流量计

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3675192A (en) * 1968-09-28 1972-07-04 Siemens Ag Arrangement for establishing the speed of flow of blood
US4542657A (en) * 1983-08-26 1985-09-24 General Electric Company Time domain technique to determine mean frequency
US4848354A (en) * 1983-05-13 1989-07-18 Vingmed A/S Method and apparatus for investigating a circulatory system in living biological structures
US5421211A (en) * 1994-10-06 1995-06-06 Marsh - Mcbirney, Inc. Liquid flowmeter including doppler signal processing, and method
US5871447A (en) * 1996-11-07 1999-02-16 Acuson Corporation Doppler energy-related parameters in an ultrasound imaging system
US6530887B1 (en) * 1996-12-24 2003-03-11 Teratech Corporation Ultrasound probe with integrated electronics

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4989609A (en) * 1989-01-26 1991-02-05 Minnesota Mining And Manufacturing Company Doppler blood flow system and method using special zero flow rate analysis
JPH04108434A (ja) * 1990-08-28 1992-04-09 Toshiba Corp 超音波診断装置
JPH07140232A (ja) * 1993-11-19 1995-06-02 Nippon Motorola Ltd 受信装置を搭載した移動体の移動速度検出装置
JP3693264B2 (ja) * 1994-12-27 2005-09-07 東芝医用システムエンジニアリング株式会社 超音波診断装置
JP3752340B2 (ja) * 1997-02-07 2006-03-08 愛知時計電機株式会社 超音波ドップラー流速・流量計
JPH11142425A (ja) * 1997-11-10 1999-05-28 Furuno Electric Co Ltd 流速測定装置および超音波診断装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3675192A (en) * 1968-09-28 1972-07-04 Siemens Ag Arrangement for establishing the speed of flow of blood
US4848354A (en) * 1983-05-13 1989-07-18 Vingmed A/S Method and apparatus for investigating a circulatory system in living biological structures
US4542657A (en) * 1983-08-26 1985-09-24 General Electric Company Time domain technique to determine mean frequency
US5421211A (en) * 1994-10-06 1995-06-06 Marsh - Mcbirney, Inc. Liquid flowmeter including doppler signal processing, and method
US5871447A (en) * 1996-11-07 1999-02-16 Acuson Corporation Doppler energy-related parameters in an ultrasound imaging system
US6530887B1 (en) * 1996-12-24 2003-03-11 Teratech Corporation Ultrasound probe with integrated electronics

Also Published As

Publication number Publication date
WO2006028990A2 (fr) 2006-03-16
EP1791470A4 (fr) 2009-09-02
JP2008512653A (ja) 2008-04-24
US20070293759A1 (en) 2007-12-20
EP1791470A2 (fr) 2007-06-06
CA2577422A1 (fr) 2006-03-16

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